baber/WOPTO huggingface dataset:
Patent CA-2263105-A1 (CA)
Title: Dental model articulator
Inventor: VAN VALEY EDWIN T
IPC: A61C13/34
Filed: 1997-08-21
Abstract: A dental model articulator includes two hinge-jointed arms, each arm having segments connected at a hinge joint having mating ele-ments, one integral to each segment of an arm.  One element includes two cymbals that are coax-ial on a major hinge axis and concave facing which resiliently capture between them a node of the mating element on the other segment which has the form of opposed, outwardly facing con-vexities. Multiaxial motion between the seg-ments of each arm is accommodated by the ro-tation of the convexities of the node within de-tents at the apices of the cymbals. The extrem-ities of each arm terminate in cylindrical rod--like elements that are parallel to the major hinge axis. The rods engage with transverse, cylindri-cal channels either cut-in, molded-in or affixed to the models. With the models positioned in cen-tric occlusal relationship and the arms adjacently positioned and engaged, the four rods are adhe-sively fixed in the channels. Once fixed, the two hinge joints together define a single hinge axis posterior and interjacent to the models. Further, each hinge joint can allow the node elements to release from the axis detents and slide between the cymbals to permit protrusive and lateral mas-ticatory motions between the dental models.
Patent CA-2263595-A1 (CA)
Inventor: LEHTINEN PEKKA
IPC: H04M3/42
Filed: 1997-08-29
Abstract: L'invention concerne un procédé permettant de traiter les consignations d'événements dans un système de base de données de services. La base de données contient des tables de mesure (MT) constituées de rangées consécutives (Ri). Une rangée contient des données concernant un seul objet de mesure. Pour que l'enregistrement d'un groupe de compteurs important puisse se faire de manière efficace et que la mesure puisse commencer sans retard pour tous les objets, (a) un seul compteur de mesure est conservé, copié en N exemplaires, dans la rangée correspondant à chaque objet de mesure de la table de mesure; (b) le domaine temporel est divisé en intervalles d'enregistrement consécutifs, de façon que seules les valeurs d'un groupe de compteurs sélectionné situé dans la rangée soient incrémentées durant chaque intervalle d'enregistrement, et (c) l'enregistrement et la remise à zéro des valeurs des compteurs sont traités durant un intervalle d'enregistrement, un seul objet de mesure à la fois.
Patent CA-2264303-A1 (CA)
Inventor: MORRISON JAMES DAVID
IPC: C09K5/04
Filed: 1997-08-18
Abstract: L'invention comprend une composition comprenant (A) au moins un composé sélectionné dans le groupe se composant de dioxyde de carbone (CO2) et des hydrofluorocarbones dont le point d'ébullition se situe entre -80  DEG C et -40  DEG C. Cette composition comprend (B) au moins un hydrofluorocarbone sélectionné dans le groupe se composant de 1,1,1,2-tétrafluoroéthane (R-134a), 1,1,2,2-tétrafluoroéthane (R-134) et 1,1-difluoroéthane (R-152a). En outre, la composition comprend (C) au moins un hydrofluorocarbone sélectionné dans le groupe se composant de 1,1,1, 3,3,3-hexafluoropropane (R-236fa) et 1,1,1,2,3,3-héxafluoropropane (R-236ea). Cette composition est utile comme réfrigérant et peut être utilisée dans les systèmes de conditionnement d'air pour automobiles et dans les appareils de réfrigération domestiques en remplacement du réfrigérant R-12.
Patent CA-2266779-A1 (CA)
Title: Signs and lightning systems
Inventor: TELFORD PAUL JAMES
IPC: G09F19/22
Filed: 1997-09-22
Abstract: A sign (1) contains a plurality of self-powered light-emitting elements (5) (e.g. of tritium) which are juxtaposed to form the shape of at least one symbol (e.g. an arrow) and are contained within a housing that is adapted to be floor-mounted or mounted in a wall or the like at low-level. The elements (5) are mounted in base (2) which is sealed to a transparent lid (3) in a gas-tight manner. The base (2) and lid (3) are in turn mounted in an outer box (10) which is secured to a floor (17) to contain the sign (1) therein, substantially flush with the surface of the floor (17). The sign (1) may be used with advantage as an emergency sign or direction system at floor or low level, and does not require an electricity supply. Also disclosed is a lighting system comprising elements (5) mounted within a tube which is in turn engaged within an aluminium profile provided along its length with a recess through which the elements are visible (Figures 3 to 5).
Patent CA-2267713-A1 (CA)
Title: Optical-fiber cable and method of manufacturing the same
Inventor: SATO YOSHIYASU
IPC: G02B6/44
Filed: 1999-03-24
Abstract: There is provided an optical-fiber; and a cylinder body which is made from a cylindrically formed belt-shaped material and made of resin and which accommodates the optical-fiber therein.
Patent CA-2269998-A1 (CA)
Inventor: WANG DER-L
IPC: A01N43/90
Filed: 1999-04-23
Abstract: A simple cold process of formulated azadirachtin based pesticides from azadirachtin concentrate is disclosed. The process Involves combining an azadirachtin concentrate with an alcohol solvent having a high water solubility and a molecular structure with more than there carbon atoms. The process requires no surfactants, additional acidifier or alkali pH adjustment. The resulting products have excellent shelf life, insecticidal properties ~~~  a lack of phytotoxicity.
Patent CA-2271978-A1 (CA)
Inventor: KANDA YOSHINORI
IPC: H03H21/00
Filed: 1999-05-14
Abstract: A method and a circuit for training the tap coefficient of an adaptive equalizer, which are characterized in that both the target impulse response window and the filter coefficient window are made fixed after a predetermined condition is satisfied. Thereby, the convergence of training can be avoided from being late due to the affect such as noise etc. The predetermined condition includes: (1)when the ratio of power outside the window of target impulse response and power inside the window of target impulse response is less than a predetermined value, (2)when the ratio of power outside the window of filter coefficient and power inside the window of filter coefficient is less than a predetermined value, and (3) when the loop of the impulse response update step, the impulse response window step, the filter coefficient update step and the filter coefficient window step is repeated a predetermined number of times.
Patent CA-2274939-A1 (CA)
Title: Cosmetic composition in the form of an aqueous dispersion containing at least a polymeric colouring agent
Inventor: LEMANN PATRICIA
IPC: A61K8/29
Filed: 1997-12-15
Abstract: The invention concerns a makeup composition for the skin, eyes, nails, lips in the form of an aqueous dispersion characterised in that it contains at least a sulphopolyester polymeric colouring agent and at least a filmforming polymer. The invention also concerns a makeup method.
Patent CA-2275004-A1 (CA)
Title: Switch matrix among tributaries of a telecommunication network and managing method thereof
Inventor: LOVADINA MARCO
IPC: H04Q11/04
Filed: 1999-06-15
Abstract: A switch matrix among tributaries of a telecommunication network operating on flows of data which are arranged according to SDH protocol, said switch matrix comprising a set of parallel branches, each of said branches comprising at least a space stage able to select and pack from the input data flow a subset of data to be exchanged, a second time stage able to store the data subset to be exchanged and comprising a random access memory device associated with a write memory and a read memory, said write memory and read memory being driven by a microprocessor and a master counter. The invention is characterized in that the read memory and write memory of each random access memory device are updated in association with a spare read memory which is common to read memories on all branches in parallel and with a spare write memory which is common to write memories on all branches in parallel, respectively.
Patent CA-2278271-A1 (CA)
Title: Septic tank sludge gauge
Inventor: HUDGIN GLEN
IPC: G01F23/00
Filed: 1999-07-21
Abstract: A sludge gauge for measuring the depth of a sludge layer covering a bottom of a septic tank. The sludge gauge has a guide sleeve mountable through a septic tank cover and a probe, at least an upper end of which is slidably received in the guide sleeve. The probe has a base end distal an upper end. The density and base end configuration of the probe are selected to cause the probe to sink through a liquid layer in the septic tank until the base end settles on the sludge layer when the probe is released from a raised position. A cap is securable over an upper end of the guide sleeve and a collapsible connector extends between the cap and the probe for raising the probe into the raised position. An indicator is attached to the cap for indicating a height of the base end of the probe above the bottom of the septic tank thereby indicating sludge depth in the tank.
Patent CA-2280247-A1 (CA)
Title: Auxiliary hydraulic drive for tractors
Inventor: YOUNG DAVID A
IPC: F16H57/04
Filed: 1999-08-12
Abstract: A splitter gearbox for a four wheel drive, hydrostatically driven tractor integrates both the input drive train and the output drive train into a single gearbox. The drive mechanism eliminates the need for a separate mechanical gearbox by establishing pre-set fixed displacement settings that are electronically controlled along with the variable displacement of the hydrostatic motor and hydrostatic pump, to provide a smooth power shift through all ranges without requiring the tractor to stop. The drive mechanism is configured so that essentially all components are individually controlled so that the entire power generated by the tractor engine can be diverted to any one of the traction drive, the PTO mechanism, the auxiliary hydraulic drive or, to a somewhat lesser extent, the tractor hydraulic system. The splitter gearbox is mounted to the rear axle housing to allow the sharing of a common oil sump. The input gear set and the output gear set are also within the same common lubrication sump within the splitter gearbox.
Patent CA-2280466-A1 (CA)
Inventor: MARTIN EUGENE R
IPC: B05D5/00
Filed: 1999-08-17
Abstract: Asphalt release coatings are prepared by applying an aqueous emulsion containing an organopolysiloxane component, an effective amount of one or more emulsifying surfactants, and most minor amount of a multiple release additive. The compositions exhibit improved release, particularly multiple releases, even with polymer modified asphalt binders.
Patent CA-2281308-A1 (CA)
Inventor: KARIATSUMARI KEN
IPC: A63B47/02
Filed: 1999-09-01
Abstract: A golf ball retriever comprising a pivotally-attached cradle for retrieving golf balls. The cradle is pivotally attached to a forked handle, which can ultimately be attached to an elongated rod, or the hosel or shaft of a golf club, for reaching distant golf balls. The cradle is comprised of two cradle arms and a catchment member, all of which are curved to receive and engage the curvature of a golf ball. At a point proximate to the cradle catchment member, the cradle arms are spaced apart a distance less than the diameter of a golf ball. The cradle arms diverge from this point until they become connected to the cradle catchment member, causing the retrieved golf ball to be continuously guided into the cradle, where it is securely engaged at three locations.      The retriever may be attached to an elongate rod or a golf club by a tube and may also hinge together to compact for storage. In an alternative embodiment, the cradle arms are connected to a transverse bar, which is pivotally attached to a shaft.
Patent CA-2285964-A1 (CA)
Title: Living olefin polymerization processes
Inventor: SCHROCK RICHARD R
IPC: C08F2/00
Filed: 1998-04-09
Abstract: Processes for the living polymerization of olefin monomers with terminal carbon-carbon double bonds are disclosed. The processes employ initiators that include a metal atom and a ligand having two group 15 atoms and a group 16 atom or three group 15 atoms.  The ligand is bonded to the metal atom through two anionic or covalent bonds and a dative bond. The initiators are particularly stable under reaction conditions in the absence of olefin monomer. The processes provide polymers having low polydispersities, especially block copolymers having low polydispersities. It is an additional advantage of these processes that, during block copolymer synthesis, a relatively small amount of homopolymer is formed.
Patent CA-2286802-A1 (CA)
Title: Process monitor for a weld controller
Inventor: BAILEY JONATHAN H
IPC: B23K11/25
Filed: 1999-02-19
Abstract: A weld controller maintains an internal dynamic model of load impedance, which tracks normal impedance variations that occur as the weld tooling degrades. The weld controller contains a weld process monitor function that tests an estimated load impedance of a weld schedule presently under execution against an internal dynamic model and generates events when characteristics of the estimated load impedance of the present weld falls outside an operator definable band, indicating a problem with the workpiece presently being welded.  The weld controller further includes the capability to accept a static model of the load impedance that is used as the reference impedance for the weld control and tooling. The weld controller also includes means to declare an event when characteristics of the dynamic model differ from the static model by an operator-defined amount. The weld controller allows a distinction to be made between a short-term difference in load impedance, generally indicative of a weld process variation and the long-term difference in load impedance, generally indicative of tooling degradation. This provides for tighter controls of weld process variations than could previously be achieved, coupled with an indication of incipient tooling faults.
Patent CA-2288941-A1 (CA)
Inventor: GAFFET LUC
IPC: F25D3/10
Filed: 1998-05-26
Abstract: The invention concerns a method for cooling a mass of substance contained in an apparatus, for example a mixer or mill, using a cryogenic liquid, whereby a cryogenic liquid is injected in the mass of substance, in the apparatus bottom part. The method is characterised in that the injected liquid pressure is higher than 3 bars, and preferably between 5 and 15 bars.
Patent CA-2289396-A1 (CA)
Title: Feed forward compensation using phase and time modulation
Inventor: GENTZLER CHARLES R
IPC: H03F1/32
Filed: 1999-11-12
Abstract: The invention relates to a low cost feed forward RF power amplifier arrangement for amplifying an RF input signal using a main power amplifier operating as a Class AB amplifier. The method and apparatus modify the input signal to the main amplifier to compensate for the distortion added by the main power amplifier. The circuit provides for injecting a pilot signal prior to the Class AB amplifier and adjusting the correction circuitry of the amplifier based on a quadrature modulated, chopped derivative of the injected pilot signal.
Patent CA-2292420-A1 (CA)
Title: Paper forming activity control with lifting variable angle inertial stimulation blades
Inventor: BACHAND JEFFREY P
IPC: D21F1/54
Filed: 1998-06-11
Abstract: A papermaking apparatus such as a Fourdrinier table which includes a long blade (10) and a trail blade (14). In the first aspect of the invention, the long blade (10) includes an upper undulated surface (12) with vents (18) passing from the upper undulated surface (12) to the lower surface of the long blade (10) which is at substantially atmospheric pressure. In the second aspect of the invention, the trail blade (14) includes an elevator-type device (22) for adjusting the vertical position of the trail blade. In a third aspect of the invention, a single elevator (38) is used to adjust the angle of the blade, the blade is provided as a modular or multiple-piece design, mounting buttons (52) are used to engage slots of T-shaped cross section in the blade and/or ceramic inserts (62) are included at wear points.
Patent CA-2293393-A1 (CA)
Title: Mobile device, chip card and method of communication
Inventor: RITTER RUDOLF
IPC: H04W12/04
Filed: 1998-01-30
Abstract: According to the invention, a mobile device comprises a removable SIM chip card (2) with data processing means (20) for storing identification data relating to a subscriber in a GSM mobile communications network (4) for example. Said mobile device also has at least one wireless interface (14; 15), said interface being integrated in the housing. The interface can be infrared or inductive and enables the SIM card to communicate directly with an external device (3; 3), in both directions, without using the mobile communications network (4). The chip card also contains a communication controller in order to encode data and transmit said data across the interface. The contactless interface can be supplied preferably independently of the mobile device.
Patent CA-2293670-A1 (CA)
Inventor: SASAKI NOBUO
IPC: G06T15/00
Filed: 1999-04-08
Abstract: Sub-polygons constituting a smooth three-dimensional shape are generated from a polygon. A Bezier curve used as an interpolating line (B12) for interpolating the portion between vertexes (P1, P2) of a rectangular polygon (P1P2P4P3) is generated from normal vectors (n1, n2), and an interpolating line (B34) for interpolating the portion between vertexes (P3, P4) from normal vectors (n3, n4). Hence interpolating points (P12, P34) are determined on the interpolating lines (B12, B34). Similarly, an interpolating line (B13) for interpolating the portion between the vertexes (P1, P3) and an interpolating line (B24) for interpolating the portion between the vertexes (P2, P4) are generated, and thereby interpolating points (P13, P24) are determined on the interpolating lines (B13, B24). Further similarly, an interpolating line (B1234) for interpolating the portion between the interpolating points (P12, P34) is generated, and hence an interpolating point (P1234) is determined on the interpolating line (B1234). Thus, the rectangular polygon (P1P2P4P3) is divided into four rectangular sub-polygons (P1P12P1234P13, P12P2P24P1234, P1234P24P4P34, P13P1234P34P3). FIG. 15: B1234 ... BEZIER CURVE FOR INTERNAL  INTERPOLATION A ... RE-DIVIDED VERTEX B ... METHOD FOR RE-DIVIDING INSIDE OF  RECTANGULAR POLYGON
Patent CA-2295684-A1 (CA)
Title: Methods and apparatus for producing low flow rates of feedstock vapors
Inventor: MCDERMOTT MARK A
IPC: B01J19/26
Filed: 1998-07-07
Abstract: A method and apparatus for producing feedstock vapors utilized in the manufacturing of silica glass is provided. The apparatus includes a means for providing a constant flow of a liquid feedstock (22), a means providing an injector gas (24), a mixer (28), an injector tube (30) having an injector entrance (34) and injector orifice (36), a means for flowing a carrier gas (26), a vaporizer chamber (32) and a vapor feedstock delivery conduit (38) which delivers feedstock vapors to a conversion site where it is converted to a silica glass. The invention produces beneficial low flow rates of feedstock vapors, particularly suited for use in the manufacture of planar optical waveguides and lightwave optical circuits.
Patent CA-2296204-A1 (CA)
Inventor: NASTA RODOLPHE
IPC: H04B7/216
Filed: 1999-12-23
Abstract: L'invention concerne un satellite présentant au moins deux antennes (3, 5) dont les diagrammes se superposent au moins partiellement, et des moyens de réception (45; 47, 49, 51) de la somme des signaux provenant des différentes antennes. Pour limiter les problèmes de trajets multiples lors de la sommation des, signaux provenant des antennes, l'invention propose que les moyens de réception comprennent des moyens de démodulation d'un signal à spectre étalé, et que la différence entre les temps de transmission respectifs d'un signal transmis vers les moyens de réception par deux antennes est supérieure en valeur absolue à une bribe de la modulation à étalement de spectre. Application à la liaison TTC (télémétrie, poursuite, et télécommande) d'un satellite.
Patent CA-2298801-A1 (CA)
Inventor: KOSTAN DEAN ANTHONY
IPC: H04M11/06
Filed: 2000-02-16
Abstract: A method and apparatus are provided for efficient improved data transmissions on telephone links between service providers and remote clients. The method and apparatus perform the steps of receiving an analog encoded data signal, selectively routed by a switch which is communicatively connected to a set of central office switch assembly codecs, and performing a high precision, synchronized analog to digital conversion while the signal is relatively close to a phone company central once switch assembly. The signal is transferred to output circuitry used to transmit signals on phone company subscriber lines. The signal is converted back to an analog signal prior to its final transmission to a subscriber client modem. In an embodiment of the invention, the high precision, synchronized analog to digital conversion is performed by a client-type modem and the output is transferred to a server-type modem which transmits the converted signal, in digital form, over a pair gain system. In an alternative embodiment, the client-type modem resides on the central office terminal side of a pair gain system and the server-type modem resides on the remote terminal side of the pair gain system.
Patent CA-2300310-A1 (CA)
Title: Music browser
Inventor: HERPERS YORK PATRICK
IPC: H04H20/82
Filed: 1999-07-01
Abstract: A music browser method and system comprises a recording station, into which reference files for pieces of music are entered and thence, together with corresponding media files, transferred to a data archive. The content of the reference files is deposited in the fields of the data archive and by means of the track management application, it is determined which media files and which corresponding fields of the data archive are to be made available in a server and transferred.      Media files deposited in the server and corresponding fields of the data archive are made available on request at the level of an output unit and the corresponding piece of music is played at the level of the output unit.
Patent CA-2300725-A1 (CA)
Inventor: MEYER GEORGE RICHARD
IPC: C23F11/14
Filed: 2000-03-15
Abstract: The present invention relates to a process for making and a method for using a corrosion inhibitor to reduce the corrosion rate of a metal by a fluid containing a corrosion agent. The corrosion inhibitor comprises a quaternized compound. A preferred corrosion inhibitor is a compound having the formula:
Patent CA-2303550-A1 (CA)
Inventor: SHARMA RAM PRAKASH
IPC: C12N5/04
Filed: 2000-03-31
Abstract: The invention relates to a process for the production of a stable compound (+) catechin penta acetate of formula (2) from T. wallichiana tissue cultures and production of compound (+) catechin of formula (1), said process comprising the steps of inoculation of explants on culture media supplemented with auxins and cytokinins, incubation of the cultures for callus initiation followed by subculturing at 4-6 weeks intervals, extraction of fresh pulverized calli with polar solvents, evaporating the polar solvent to give a residue, treating t:he residue with a chlorinated solvent to isolate (+) catechin by filtration or treating the residue with water and extracting with a chlorinated solvent and evaporating the solvent to semi-solid mass, subjecting the resultant mass to column chromatography over suitable adsorbents, eluting with organic solvent or mixtures of organic solvent to obtain(+)catechin penta acetate.